Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent?
Theory of Idealism was expounded by George Hegal, Bishop George and Berkeley According to this
Options: mathli is an illusion and that the only reality that which exists mentally, good was pleasure and that evil was pain, base of knowledge is sense-experience, that is, observations governed by scientific principles, all knowledge is derived from sensory experience, by observing and experimenting